On Sat, 15 Aug 2015, Loic Dachary wrote: > Hi, > > Is there a portable and consistent way to figure out if a given /dev/XXX > path (for instance /dev/dm-1) is a partition of a whole device ? > Although checking /sys/block/dm-1/dm/name for a number at the end (like > mpatha1 or mpatha2) would probably work, it feels like a fragile hack. > Looking into /sys/block/dm-1/slaves will lead to > /sys/block/dm-1/slaves/dm-0 and we can check that > /sys/block/dm-*/subsystem is class/block. But that does not necessarily > mean dm-1 is a partition of dm-0, just that it's a slave of dm-0.
Take a look at is_partition in ceph-disk, whih is the best I came up with. Basically it checks if the device name appears as /sys/block/*/$foo... sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
